面向未来透明全光网络的高阶QAM信号波长转换

2014 13th International Conference on Optical Communications and Networks (ICOCN) Pub Date : 2014-12-18 DOI:10.1109/ICOCN.2014.6987061

G. Lu, T. Sakamoto, T. Kawanishi

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引用次数: 0

摘要

随着光通信系统中采用频谱高效的多级调制格式的最新趋势，利用全光波长转换(AOWC)方案来处理16或64正交调幅(QAM)信号等格式是非常可取的。由于在AOWC子系统中，线性和非线性相位噪声随数据传递到转换波长，因此必须优化AOWC的运行条件以抑制噪声，以兼容相位噪声敏感的高阶QAM格式。我们首先研究了在高度非线性光纤中通过四波混频对高阶QAM(如64QAM)信号的AOWC性能优化，然后讨论了我们提出的使用无泵浦相位噪声的相干泵浦处理高阶QAM(如16/64-QAM)信号的AOWC方案。

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Wavelength conversion of high-order QAM signals for future transparent all-optical networks

With the recent trend of employing spectrally efficient multi-level modulation formats in optical communication systems, it is highly desirable to exploit the all-optical wavelength conversion (AOWC) schemes for formats, such as 16- or 64-quadrature amplitude modulation (QAM) signals. Since the linear and nonlinear phase noise is transferred with the data to the converted wavelength in AOWC subsystem, it is imperative to optimize the operation condition in AOWC to suppress noise to allow compatibility phase-noise sensitive high-order QAM formats. We first investigate the performance optimization of AOWC for high-order QAMs like 64QAM through four-wave mixing in highly nonlinear fiber, and then discuss our proposed AOWCs schemes for high-order QAM signals such as 16/64-QAM using coherent pumps which is free of phase noise from pumps.

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2014 13th International Conference on Optical Communications and Networks (ICOCN)

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